کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1900127 | 1045266 | 2014 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
One-dimensional linear elastic waves at moving property interface
ترجمه فارسی عنوان
امواج یکپارچه خطی در رابط کاربری حرکتی
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کلمات کلیدی
متغیر زمان رابط کاربری حرکتی، موج الاستیک شوکه شدن،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
Smart materials exhibit time-varying properties while time-varying external field is applied. To investigate the one-dimensional (1-D) homogeneous time-varying properties, a moving property interface (MPI) model is proposed, and the propagation of linear elastic waves at 1-D MPI is studied in this paper. Based on the idea of weak solutions and an infinity approximation, a novel method to deal with the difficulties in using the continuities to study the waves at MPI is also proposed. Some interesting phenomena are revealed: (i) besides wave impedance, the property interface motion and wave velocity are also very important factors that influence the wave propagation; (ii) at MPI, there may exist shock waves; (iii) the property interface motion has a significant impact on the wave frequency and energy. This research provides a theoretical viewpoint in the study of smart materials with a time-dependent mechanical properties at different loading conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wave Motion - Volume 51, Issue 7, November 2014, Pages 1179-1192
Journal: Wave Motion - Volume 51, Issue 7, November 2014, Pages 1179-1192
نویسندگان
Lang-Quan Shui, Zhu-Feng Yue, Yong-Shou Liu, Qing-Chang Liu, Jiao-Jiao Guo,